Home / 31,890.96-44,004.54-18,459.60

Finding the Fourth Proportional to 31,890.96, 44,004.54 and 18,459.60

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Solution

The fourth proportional to 31,890.96, 44,004.54 and 18,459.60 is: 25,471.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,890.96 : 44,004.54 = 18,459.60 : x
  2. Step 2: Convert to fraction form
    31,890.96/44,004.54 = 18,459.60/x
  3. Step 3: Cross multiply
    31,890.96x = 44,004.54 × 18,459.60
  4. Step 4: Simplify right side
    31,890.96x = 812,306,206.58
  5. Step 5: Solve for x
    x = 812,306,206.58/31,890.96
  6. Step 6: Final answer
    x = 25,471.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.